Quelle  omap-dmic.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * omap-dmic.h  --  OMAP Digital Microphone Controller
 */

#ifndef _OMAP_DMIC_H
#define _OMAP_DMIC_H

#define OMAP_DMIC_REVISION_REG  0x00
#define OMAP_DMIC_SYSCONFIG_REG  0x10
#define OMAP_DMIC_IRQSTATUS_RAW_REG 0x24
#define OMAP_DMIC_IRQSTATUS_REG  0x28
#define OMAP_DMIC_IRQENABLE_SET_REG 0x2C
#define OMAP_DMIC_IRQENABLE_CLR_REG 0x30
#define OMAP_DMIC_IRQWAKE_EN_REG 0x34
#define OMAP_DMIC_DMAENABLE_SET_REG 0x38
#define OMAP_DMIC_DMAENABLE_CLR_REG 0x3C
#define OMAP_DMIC_DMAWAKEEN_REG  0x40
#define OMAP_DMIC_CTRL_REG  0x44
#define OMAP_DMIC_DATA_REG  0x48
#define OMAP_DMIC_FIFO_CTRL_REG  0x4C
#define OMAP_DMIC_FIFO_DMIC1R_DATA_REG 0x50
#define OMAP_DMIC_FIFO_DMIC1L_DATA_REG 0x54
#define OMAP_DMIC_FIFO_DMIC2R_DATA_REG 0x58
#define OMAP_DMIC_FIFO_DMIC2L_DATA_REG 0x5C
#define OMAP_DMIC_FIFO_DMIC3R_DATA_REG 0x60
#define OMAP_DMIC_FIFO_DMIC3L_DATA_REG 0x64

/* IRQSTATUS_RAW, IRQSTATUS, IRQENABLE_SET, IRQENABLE_CLR bit fields */
#define OMAP_DMIC_IRQ   (1 << 0)
#define OMAP_DMIC_IRQ_FULL  (1 << 1)
#define OMAP_DMIC_IRQ_ALMST_EMPTY (1 << 2)
#define OMAP_DMIC_IRQ_EMPTY  (1 << 3)
#define OMAP_DMIC_IRQ_MASK  0x07

/* DMIC_DMAENABLE bit fields */
#define OMAP_DMIC_DMA_ENABLE  0x1

/* DMIC_CTRL bit fields */
#define OMAP_DMIC_UP1_ENABLE  (1 << 0)
#define OMAP_DMIC_UP2_ENABLE  (1 << 1)
#define OMAP_DMIC_UP3_ENABLE  (1 << 2)
#define OMAP_DMIC_UP_ENABLE_MASK 0x7
#define OMAP_DMIC_FORMAT  (1 << 3)
#define OMAP_DMIC_POLAR1  (1 << 4)
#define OMAP_DMIC_POLAR2  (1 << 5)
#define OMAP_DMIC_POLAR3  (1 << 6)
#define OMAP_DMIC_POLAR_MASK  (0x7 << 4)
#define OMAP_DMIC_CLK_DIV(x)  (((x) & 0x7) << 7)
#define OMAP_DMIC_CLK_DIV_MASK  (0x7 << 7)
#define OMAP_DMIC_RESET   (1 << 10)

#define OMAP_DMICOUTFORMAT_LJUST (0 << 3)
#define OMAP_DMICOUTFORMAT_RJUST (1 << 3)

/* DMIC_FIFO_CTRL bit fields */
#define OMAP_DMIC_THRES_MAX  0xF

enum omap_dmic_clk {
 OMAP_DMIC_SYSCLK_PAD_CLKS,  /* PAD_CLKS */
 OMAP_DMIC_SYSCLK_SLIMBLUS_CLKS,  /* SLIMBUS_CLK */
 OMAP_DMIC_SYSCLK_SYNC_MUX_CLKS,  /* DMIC_SYNC_MUX_CLK */
 OMAP_DMIC_ABE_DMIC_CLK,   /* abe_dmic_clk */
};

#endif